log_{2}(x^3-x)=-3

解

lo g_{2} (x^{3} - x) = - 3

x \approx - 0.12705 \dots, x \approx - 0.93040 \dots, x \approx 1.05745 \dots

解答ステップ

lo g_{2} (x^{3} - x) = - 3

対数の規則を適用する

x^{3} - x = \frac{1}{8}

解く

x^{3} - x = \frac{1}{8} : x \approx - 0.12705 \dots, x \approx - 0.93040 \dots, x \approx 1.05745 \dots

x \approx - 0.12705 \dots, x \approx - 0.93040 \dots, x \approx 1.05745 \dots